Issue2890

I have tried to install in Win10 Pro with different Java versions:

jre-8u241-windows-i586.exe
jre-8u241-windows-x64.exe
jre-8u251-windows-i586.exe
jre-8u251-windows-x64.exe
jre-8u181-windows-i586.exe
jre-8u181-windows-x64.exe

PC: Intel i7-700, 2.80 Ghz, x64 bit CPU

C:\Jython>java -jar jython-installer-2.7.2.jar
Exception in thread "main" java.lang.ExceptionInInitializerError
        at org.python.core.PySystemState.<clinit>(PySystemState.java:73)
        at org.python.util.jython.main(jython.java:533)
Caused by: java.lang.IllegalArgumentException: Cannot create PyString with non-byte value
        at org.python.core.PyString.<init>(PyString.java:57)
        at org.python.core.PyString.<init>(PyString.java:70)
        at org.python.core.PyString.<init>(PyString.java:74)
        at org.python.core.Py.newString(Py.java:643)
        at org.python.core.PyJavaType.init(PyJavaType.java:543)
        at org.python.core.PyType$Registry.createType(PyType.java:477)
        at org.python.core.PyType$Registry.addFromClass(PyType.java:426)
        at org.python.core.PyType$Registry.resolveType(PyType.java:352)
        at org.python.core.PyType$Registry$1.computeValue(PyType.java:208)
        at org.python.core.PyType$Registry$1.computeValue(PyType.java:202)
        at java.lang.ClassValue.getFromHashMap(Unknown Source)
        at java.lang.ClassValue.getFromBackup(Unknown Source)
        at java.lang.ClassValue.get(Unknown Source)
        at org.python.core.PyType.fromClass(PyType.java:2137)
        at org.python.core.PyObject.<init>(PyObject.java:85)
        at org.python.core.PySingleton.<init>(PySingleton.java:9)
        at org.python.core.PyNotImplemented.<init>(PyNotImplemented.java:10)
        at org.python.core.Py.<clinit>(Py.java:66)
        ... 2 more


Could you please assist? Is this already fixed?

It works fine on Win 10 Enterprise.

Best regards,
Sherif

Not fixed, and very odd, considering where it happens.

Normally with the message "Cannot create PyString with non-byte value" I'd suspect non-ascii paths or character coding on the host, but I think the string here should just be a class name. It's going wrong here:

https://github.com/jythontools/jython/blob/v2.7.2/src/org/python/core/PyJavaType.java#L543

and I wonder why Jython is doing stuff with reflected methods anyway? And why only on your machine?

It's not like installing on a Windows machine is anything new, and I don't see why this bit should be sensitive to anything in your particular environment. It looks like code that would execute identically whenever Jython starts on any machine.

Could the installer be a bad copy? You'd think it wouldn't run at all, in that case, but I'm stumped for now.

Hi Jeff,

No, this is not the case. I have tried with more than one Jython
installation files of 2.7.2 and 2.7.1, all failed unfortunately.

I couldn't find the issue in the bug list so comment on this email thread.

I'd like to use Jython for Fiji-ImageJ platform but so far no luck.

Best regards,
Sherif

On Sat, May 23, 2020 at 10:10 AM Jeff Allen <report@bugs.jython.org> wrote:

>
> Jeff Allen <ja.py@farowl.co.uk> added the comment:
>
> Not fixed, and very odd, considering where it happens.
>
> Normally with the message "Cannot create PyString with non-byte value" I'd
> suspect non-ascii paths or character coding on the host, but I think the
> string here should just be a class name. It's going wrong here:
>
>
> https://github.com/jythontools/jython/blob/v2.7.2/src/org/python/core/PyJavaType.java#L543
>
> and I wonder why Jython is doing stuff with reflected methods anyway? And
> why only on your machine?
>
> It's not like installing on a Windows machine is anything new, and I don't
> see why this bit should be sensitive to anything in your particular
> environment. It looks like code that would execute identically whenever
> Jython starts on any machine.
>
> Could the installer be a bad copy? You'd think it wouldn't run at all, in
> that case, but I'm stumped for now.
>
> ----------
> nosy: +jeff.allen
> priority:  -> normal
>
> _______________________________________
> Jython tracker <report@bugs.jython.org>
> <https://bugs.jython.org/issue2890>
> _______________________________________
>